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Maryanesantos63
@Maryanesantos63
January 2020
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Resolva as equações:
A)6×+15=-20
B)10×+100=-90
C)4×+16=-2×+2
D)8×+16=20×-40
E)-3×+9=27
F)-4×-2×=16+20
G)-12×+24=6×-2×
H)9×+3×=-2×+4
I)6×+36=-2×+4
J)-8×+8=16
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RogherChristopher
A) 6x+15=-20
6x=-5
x=-5/6
b)10x+100=-90
10x= -190
x= -190/10
x=-19
c)4x+16=-2x+2
4x+2x= 2-16
6x=-14
x= -14/6
simplificando por 2
-7/3
d)8x+16=20x-40
16+40=20x-8x
56=12x
56/12=x
simplificando por 2
28/6
14/3
e)-3x+9=27
-3x=27-9
-3x= 18
-x=18/3
(-x=6)^-1
x=-6
f)-4x-2x=16+20
-6x=36
x=36/-6
x=-6
g)-12x+24=6x-2x
24=4x-12x
24=-8x
24/-8=x
-3=x
h)9x+3x=-2x+4
12x+2x=4
14x=4
x = 4/14
simplificando por 2
x= 2/7
i)6x+36=-2x+4
6x+2x=4-36
8x=-32
x=-32/8
x=-4
j)-8x+8=16
-8x=16-8
-8x=8
x=8/-8
x=-1
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Report "Resolva as equações: A)6×+15=-20 B)10×+100=-90 C)4×+16=-2×+2 D)8×+16=20×-40 E)-3×+9=27 F)-4×-2×=16+2.... Pergunta de ideia de Maryanesantos63"
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6x=-5
x=-5/6
b)10x+100=-90
10x= -190
x= -190/10
x=-19
c)4x+16=-2x+2
4x+2x= 2-16
6x=-14
x= -14/6
simplificando por 2
-7/3
d)8x+16=20x-40
16+40=20x-8x
56=12x
56/12=x
simplificando por 2
28/6
14/3
e)-3x+9=27
-3x=27-9
-3x= 18
-x=18/3
(-x=6)^-1
x=-6
f)-4x-2x=16+20
-6x=36
x=36/-6
x=-6
g)-12x+24=6x-2x
24=4x-12x
24=-8x
24/-8=x
-3=x
h)9x+3x=-2x+4
12x+2x=4
14x=4
x = 4/14
simplificando por 2
x= 2/7
i)6x+36=-2x+4
6x+2x=4-36
8x=-32
x=-32/8
x=-4
j)-8x+8=16
-8x=16-8
-8x=8
x=8/-8
x=-1